* You can see 3D images without glasses on the top screen. The 3D effect can be adjusted by a slider on the side.
* A sterographic camera that takes 3D pictures. The two external 0.3 megapixel cameras automatically turn photos into 3D.
* New input interfaces: slide pad, motion sensors, and a gyro sensor.
* Communication while in sleep mode: The 3DS automatically connects to Wi-Fi spots and Nintendo Zones to download game data, demos, and videos.
* Crosspass Mode  Similar to Dragon Quest IX the Nintendo 3DS exchanges data with other 3DS users. This feature works for multiple titles.
* DS functions work within games. You can visit the home menu, notification lists, and internet browser while playing a game.
* Built-in software: Like the Nintendo DSi, the Nintendo 3DS comes preloaded with apps. You can use the Nintendo 3DS Camera, 3DS Sound, Mii Studio, Crosspass mode Mii Plaza, AR Games, and a Memory Notebook.
* Introductory videos and rankings can be downloaded from the internet.
* Software purchased on a Nintendo DSi and/or Nintendo DSi XL can be transferred to and from a Nintendo 3DS. There is a limit of how many times you can transfer software, but Nintendo has not announced a number.
* Backwards compatible with Nintendo DS and Nintendo DSi games.
* Parental controls can be set for the web browser and what software can be run.